Singleplayer Websites:
thesircommunity.com
The Sir. Community
The Sir. Community is a long standing gaming community that specializes in unorthodox gameplay, filming, modding, and beta testing.
doom.com.hr
Doom Croatia - news, info, demos, maps
doom.com.hr is page dedicated to Doom game made by id Software in 1994. You can find news, files, demos, patches, pictures, music, events and many other things related to Doom...